*{
    margin: 0;
    padding: 0;
    background-color: black;
}
a{
    text-decoration: none;
}
ul{
    list-style: none;
}
.head{
    width: 100%;
    height: 200px;
}
.head .center p{
    color: white;
    font-size: 60px;
    margin-left: 450px;
    line-height: 200px;
}
.nva4{
    background-color: #F2EBEB;
    height: 170px;
    width: 200px;
    position: fixed;
    right: 25px;
    border-radius: 50px;
    z-index: 999;
    top: 510px;
}
.nva4 .firs .ding1,.ding2{
    background-color: #F2EBEB;
}
.nva4 .firs a{
    color: #A51C30;
    font-size: 30px;
    height: 36px;
    background-color: #F2EBEB;
}
.nva4 .firs .ding1{
    position: absolute;
    top: 35px;
    left: 28px;
}
.nva4 .firs .ding2{
    position: absolute;
    top:95px;
    left: 28px;
}
.nva4 .firs .tub{
    height: 26px;
    background-color: white;
}
.nva4 .firs .ding1 img,.ding2 img{
    width: 20px;
    margin-top: 4px;
}